dridex | 83643d80ab4a8d8541653dc7832df87824031bb3a3842115c0e935951473d9e8

Analysis

max time kernel
28s
max time network
8s
platform
windows7_x64
resource
win7v20210410
submitted
21-04-2021 18:43

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General

Target

83643d80ab4a8d8541653dc7832df87824031bb3a3842115c0e935951473d9e8.dll
Size

154KB
MD5

8b846ab34d17168c55e7ccec668f005b
SHA1

966333612deb305f8e5f7066238666c5afe964c6
SHA256

83643d80ab4a8d8541653dc7832df87824031bb3a3842115c0e935951473d9e8
SHA512

276175d30fe82a3c9907e491fd260caac60999a849fe4e1cf560cc1f6e2a125c7d7247b1aff2e9850467da16a381b9adf61531c5199f68d93b0e407d66259b9c

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1496-61-0x00000000754B0000-0x00000000754DD000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2004 wrote to memory of 1496	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1496	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1496	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1496	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1496	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1496	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1496	2004	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\83643d80ab4a8d8541653dc7832df87824031bb3a3842115c0e935951473d9e8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\83643d80ab4a8d8541653dc7832df87824031bb3a3842115c0e935951473d9e8.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:1496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1496-59-0x0000000000000000-mapping.dmp

Download
memory/1496-60-0x00000000765F1000-0x00000000765F3000-memory.dmp

Filesize
8KB

Download
memory/1496-61-0x00000000754B0000-0x00000000754DD000-memory.dmp

Filesize
180KB

Download
memory/1496-63-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download